Arm and plate tongs



Jan. 3, 1939. E..SCHARPENBERG 2,142,214

ARM AND PLATE TONGS Filed June 12, 1937 Patented Jan. 3, 1939 UNITED STATES PATENT OFFICE ARM AND PLATE TONGS Ewald Scharpenberg, Wetter-on-the-Ruhr, Germany Application June 12, 1937, Serial No. 147,919 In Germany June 23, 1936 3 Claims. (01. 294118) The invention relates to tongs for carrying is necessary to equip the tongs arms m and n, sheet metal plates, plates, wires and the like. as shown in Fig. 3, with mutually displaced pins The tongs are characterized by two arms conq and 1". The pins q being fixed in the one arm nected by a pin-and-slot connection, each arm situated at the front and the pins 1" in the other 5 having two jaws or pins adapted to grip the arm situated behind the front arm. The pins 1' 5 Work, the jaws or pins on the opposite arms bein the last mentioned arm can freely move in an ing mutually displaced so that the work piece is aperture s and in an incision t of the front arm. turned on edge. The hinge pin of one of the The work pieceuis securely clamped between the tongs arms is shiftable in a slot of the other arm pins q and r.

and does not serve, as in the tongs of known Works of circular, four-cornered or multi-cor- 10 type, for transmission of the clamping pressure. nered cross-section and of soft material as for Several embodiments of the invention are ilinstance aluminium would be damaged when belustrated, by way of example, in the accompanying clamped between the pins q and 1. For preing drawing, in which venting this damaging, clamping plates 12 are 15 Fig. 1 shows an arm tongs in elevation arranged on the pins q and r, as shown in Figs. 15

Figs. 2 to 4 show a plate tongs in elevation and 4 and and these Plates press ns he Fig. 5 is a cross section on line AB of Fig. 4. work and clamp t Same, the Clamping p es The arm-tongs shown in Fig. 1 consists of two having at their facing ends or surfaces moulds similarly shaped arms a and b, forming the corresponding to the cross section of the work 2 tongs mouth, and of the handle ends 0 and d. piece. 0

Each one of the arms a and b has a lower jaw e I claim:- and 1 respectively, and a jaw g, h, respectively, 1. Tongs for carrying Sheet metelpletes,p1ete5,

in front of each jaw e, 1, respectively, the jaws wire and the like, compr g in combination two e and I being displaced relative to the jaws g and s Contacting intermediate of their e h in such a manner that they grip at opposite two jaws near one end of each of said arms sit- 25 sides the work piece t be clamped, Th clampuated one on each side of the central axis of the ing effect upon the workpiece i is therefore prot ne a d apt d to h from pp s t sid s duced by t turning on edge of t jaws. 1,; against the article to be carried, and each of is a pin fixed in one of the arms and shiftably enthe l on each arm being pp a 5 W 0 gaging in a transverse slit 1 of the other arm. the other arm and forming therewith tw pai s This arrangement serves to keep together the of l ws and a p d s t connection piv tal y t arms a and The tongs mouth in and slidably connecting said arms to bring both preserving the jaws, have another shape than pairs of J into f e h the e shown, for instance the shape of tube-tongs. Tongs as specified in claim 1, 1n WhlCh the The p1ate tongs Shown in 2 consists of t Jaws are formed by two pins pro ecting from each Similar shaped arms m and n, t links 0 and arm one on each side of the longitudinal axis of ring 10 connecting the links. The arms m and n the tongscarry, as in Fig. 1 the lower jaws e and f and the Tongs as Speclfied clam} Whlch the upper jaws g and h in the displaced arrangement J are formed by two pins projecting from each as shown in Fig. 1. By a pull exerted upon ring p arm one on each side of the longitudinal axis of and therefore on the links 0 the jaws are pressed the tongs, t p OH'the tWO arms each slde against the workpiece and the utt is securely of the longitudinal axis of the tongs slldably enclamped. gaging in longitudinal slots in clamping plates To grip works of circular, four or more coradapted to p the article Q llftednered cross-section, and to clamp the same, it EWALD SCI'IARPENBERG' 

